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Finding the Fourth Proportional to 21,058, 29,060.07 and 11,626.54

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Solution

The fourth proportional to 21,058, 29,060.07 and 11,626.54 is: 16,044.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058 : 29,060.07 = 11,626.54 : x
  2. Step 2: Convert to fraction form
    21,058/29,060.07 = 11,626.54/x
  3. Step 3: Cross multiply
    21,058x = 29,060.07 × 11,626.54
  4. Step 4: Simplify right side
    21,058x = 337,868,066.26
  5. Step 5: Solve for x
    x = 337,868,066.26/21,058
  6. Step 6: Final answer
    x = 16,044.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.